package com.example.liangxinxin;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;

import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.AppCompatTextView;

import java.util.ArrayList;
import androidx.appcompat.app.AppCompatActivity;

public class DataActivity extends AppCompatActivity {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //实例化控件
        setContentView(R.layout.item_main);
        //初始化数据
    }


}
